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What is the difference between Factory and Strategy patterns?

...fferent arguments may result in different objects. It depends on the logic etc. The Strategy Pattern. Encapsulate the algorithm ( steps ) to perform an action. So you can change the strategy and use another algorithm. While both look like very similar, the purpose is rather different, one pur...
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Correct format specifier for double in printf

...ce that printf format strings differ substantially from scanf (and fscanf, etc.) format strings. For output, you're passing a value, which will be promoted from float to double when passed as a variadic parameter. For input you're passing a pointer, which is not promoted, so you have to tell scanf w...
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Changing the interval of SetInterval while it's running

...n. setTimeout is subject to being delayed (by 100% cpu use, other scripts, etc) where as setInterval IS NOT affected by those delays--making it far superior for 'realtime' stuff – RozzA Dec 26 '13 at 20:59 ...
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Nginx 403 forbidden for all files

... file to access that file. Check the permissions on /, /home, /home/demo, etc. for www-data x access. My guess is that /home is probably 770 and www-data can't chdir through it to get to any subdir. If it is, try chmod o+x /home (or whatever dir is denying the request). EDIT: To easily display a...
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Is there an easy way to pickle a python function (or otherwise serialize its code)?

...e function references globals (including imported modules, other functions etc) that you need to pick up, you'll need to serialise these too, or recreate them on the remote side. My example just gives it the remote process's global namespace. You'll probably need to do a bit more to support more co...
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How to get full path of selected file on change of using javascript, jquery-ajax

... Is there a way to do this with other file types: pdf, docx, etc. and instead of the image so show an Icon? For my uses I want to store the files on the page before I send them giving the user a chance to add a comment to up load with it like a message with a text. ...
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Why do stacks typically grow downwards?

I know that in the architectures I'm personally familiar with (x86, 6502, etc), the stack typically grows downwards (i.e. every item pushed onto the stack results in a decremented SP, not an incremented one). ...
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CSS text-overflow: ellipsis; not working?

...ipsis. The solution is simple: display: inline-block; /* for em, a, span, etc (inline by default) */ text-overflow: ellipsis; width: calc (80%); /* The trick is here! */ It seems whenever you use calc, the final value is rendered in absolute pixels, which consequentially converts 80% to something...
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Replace one substring for another string in shell script

...s on any nontrivial input string (irregular spacing, shell metacharacters, etc). – tripleee Jul 17 '18 at 16:54 In sh ...
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How to recursively list all the files in a directory in C#?

...t is common to not include them. Heck, you'll also need a class definition etc. Just sayin' – Marc Gravell♦ Jun 21 '16 at 8:58 1 ...